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Posts by Tim McGuffin

Sitting at a campsite in the middle of nowhere when Benny Bassani’s “Satisfaction” starts playing far off in distance, and I’m suddenly transported back to Capture the Flag at the AP in 2002-2003. Some memories are deeply ingrained.

1 year ago 5 0 0 0
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Reminder that every 10 minute job is one broken bolt away from being an all day ordeal. :-/

1 year ago 3 1 0 0

Big vs Little Endian?
forum.flipper.net/t/trying-to-...

1 year ago 1 0 0 0

and it never leaves you clothes!

1 year ago 0 0 1 0
Old gear oil draining from a differential.

Old gear oil draining from a differential.

This is a picture some of y’all can smell.

1 year ago 6 0 1 0
Flash GLEDOPTO GL-C-210WL I was recently working on a project that needed an ESP32 powered from a 12 volt source with 4 GPIO PINs, ready-made, and in a case. I started going down the custom built route when I ran across the GL...

i picked up a GLEDOPTO WLED controller because it fit my hardware needs and figured out how to re-flash it with a different firmware. Maybe this will be useful to others who have a similar need.
tim.mcguff.in/posts/2025-0...

1 year ago 3 0 0 0

nice hat! ;)

1 year ago 0 0 1 0
1 year ago 7 0 0 1
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I’m slowly working on the inverse kinematics for the legs so the feet move forward and backward instead of in arcing motions to keep forward motion as straight as possible.
Next up is specifying azimuth to move and letting the code handle the rest. It’s “simple” math, but fun and challenging.

2 years ago 2 0 1 0

Quads are neat because you have to consider center of gravity when lifting a leg to keep it from falling over, so subtle shifts to the adjacent legs are required. You also have rotation to use that keeps all four feet in the same position and twists the body.

2 years ago 2 0 1 0
Bottom side of a SMARS Quad.

Bottom side of a SMARS Quad.

I should probably add some content here. :)
Recently I’ve been working on building an RC quadruped robot. This is v2, with a lot of learnings from v1. Physically it’s a SMARS Quad running an ESP32, PCA9685, and FS-IA6B receiver running Micropython.

2 years ago 13 0 1 0